Bis-chromonyl pharmaceutical composi-tion and methods
Abstract
Abstract PHARMACEUTICAL COMPOSITIONS COMPRISING A PHARMACEUTICAL CARRIER TOGETHER WITH A BIS-CHROMONYL COMPOUND SELECTED FROM COMPOUNDS OF THE FORMULA ((2-(HOOC-),4-(O=),R1,R2,R3-4H-CHROMENYL)-O-X-O-),4-(O=), 2-(HOOC-),R4,R5,R6-4H-CHROMENE AND FUNCTIONAL DERIVATIVES THEREOF, IN WHICH R1, R2, R3, R4, R5 AND R6 ARE EACH SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN, HYDROXY, LOWER ALKYL, LOWER ALKOXY, HYDROXYLOWERALKYL, HALOLOWERALKYL, HYDROXYLOERALKOXY, LOWERALOXYLOWERALKOXY AND CARBOXYLOWERALKOXY; AND X IS SLECTED FROM THE GROUP CONSISTING OF SATURATED AND UNSTURATED, STRAIGHT AND BRANCHES HYDROCARBON CHAINS WHICH MAY BE INTERRUPTED BY AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF BENZENE RINGS, OXYGENCONTAINING HETEROCYLIC RINGS, OXYGEN ATOMS AND CARBONYL GROUPS, AND WHICH MAY BE SUBSTITUTED BY AT LEAST ONE MEMBER, SELECTED FROM THE GROUP CONSISTING OF HALOGEN ATOMS, HYDROXY GROUPS AND LOWER ALOXY GROUPS, ARE USEFUL IN INHIBITING ANTIGEN-ANTIBODY REACTIONS.
Inventors
- 👤 C Fitzmaurice
- 👤 T Lee
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |